$387.90
Nitrogen Standard, 1 mL = 0.25 mg N, 250 ppm N as Nitrite (821 ppm NO2-), Equivalent to 1 mL = 821.1 ppm Nitrite (NO2) - NITROGEN STAND. 1ML=.25MG 16OZ
[RC546016-EA]
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.
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